Orbital angular momentum (OAM), one of the most recently discovered degrees of freedom
of light beam field has fundamentally revolutionized optical physics and its technological …

Laguerre–Gaussian (LG) beams are typical vortex beams with orbital angular momentum
(OAM), spiral wavefront phase, and donut-shaped intensity distribution. They are widely …

Vector beams have found a myriad of applications, from laser materials processing to
microscopy, and are now easily produced in the laboratory. They are usually differentiated …

We propose and demonstrate a low-threshold single-wavelength all-fiber laser generating
cylindrical vector beams using a few-mode fiber Bragg grating. Both radially and azimuthally …

Orbital angular momentum beam excitation through direct phase-matched coupling is
experimentally demonstrated using an all-fiber weakly fused mode selective coupler …

The emergence of vector vortex beams (VVBs) has opened new avenues for various
applications in optics and photonics. However, owing to the formidable phase aberration …

We demonstrate the generation of orbital angular momentum (OAM) in a two-mode
polarization-maintaining (PM) optical fiber. We combine two linearly polarized modes of PM …

We present an effective method to generate optical vortices (OVs) by using a helical fiber
Bragg grating (H-FBG) written directly on the few-mode fiber. The helical index modulation is …

We investigate the generation of entanglement between two noninteracting qubits coupled
to a common reservoir. An experimental setup was conceived to encode one qubit on the …

Optical frequency combs, which consist of precisely controlled spectral lines covering a wide
range, have played a crucial role in enabling numerous scientific advancements. Beyond …